The 6th international conference on astroinformatics, AstroInformatics 2015, will be held in the beautiful old city of Dubrovnik on the Croatian riviera, on October 5-9, 2015. Astroinformatics is a thriving new discipline that has emerged at the intersection of astronomy/astrophysics, applied computer science, information technology, and statistics, in order to address the scientific challenges and opportunities brought by the continuing exponential growth of data volumes, rates, and complexity. Its goals are to engage a broad community of researchers, both as…